Francis b



(No Model.) P 2 Shets-Slfeet 1.

L. J. KNOWLES, D6071: Fl B. KNOWLES & H. A. MARgH, Surviving Executors.

W'EFT STOP MOTION FOR LOOMS.

No. 376,776. Patented Jan. 24, 1888.

I DN'VENTUH] N. brrzws. Fholo-Lllhognphu, walhington. o. c

(No Model.)

KNOWLES, Decd. i'

' F. B. KNOWLES &, H. A. MARSH, Surviving Exeutors, v

WEPT STOP MOTION FOR LOOMS- I No. 376.776. Patented Jan 24, 1888.

N PETERS Phflvlithogmpher. Washingio". D. C,

v UNITED STATE ,LUCIUS J. KNOWLES, or WORCESTER, MASSACHUSETTS; FBAN IS B. KNOWLES AND HENRY A. MARSH SURVIVING nXnoUroRS or SAID rooms I a KNOWLES, DECEASED.

WEFT STOP-MOTION FOR-LOOMS.

SPECIFICATION forming part of Letters Patent No. 376,776, dated January 24, 1888.

I Application filed April 20, 1882. Serial No. 58,945; (No model.) Patented in England July 31, 1882, No. 3,929.

To all whom it may concern: v

Be it known that I, Lucius J. KNOWLES, of-

.Vorcester, in the Stateof Massachusetts, have invented a new and useful Improvement in \Veft Stop-Motions for. Looms, (for which British Letters Patent have already been granted to me under date of July 31, 1882, and numbered 3,629,) of which the'following is aspecification.

o The present invention has reference to that class of stop-motions in which the weft feelerwires are pivotedto the front of the lay with in the warp, as distinguished from stop-motions employing pivoted weft-feelers thatcan z 5 only be used outside of the warp at the end of the lay; and it consists in so pivoting the fingers while the mechanism for vibrating them in the normal operation of the loom,which requires frequent adjustment, is placed at the end of the loom without the warp.

The present invention is an improvement upon the invention set forth in my application N 0. 58,946, filed herewith, afterward renewed June 27, 1885, Serial No. 170,015.

Details of construction pointed out in the claims form subordinate parts of the invention.

V In the drawings, Figure 1 is a side elevation,

partially in'section, of so much of a loom as is necessary to illustrate my present invention.

Fig. 2 is a partial front elevation of the lay andmechanism attached thereto, but with the "dagger shown in section. Fig. 3 is a partial plan of the lay and mechanism attached there to, and also of the breast-beamand mechanism supported thereby, together with a portion of the warp and woven cloth.

A is the loom-frame.

B is the breast-beam. 0 G is the shipper-lever shaft, being a rockshaft in suitable bearings beneath the breastbeam. It has connected with it any ordinary belt-shifting mechanism and a shipper-lever by which said mechanism may be operated by hand.

F is the knockoff lever, rigidly secured to a rock-shaft, c, which has hearings in abracket, B, bolted to the back of the breast-beamoutside of the warp, and said lever F has a is also rigidly secured to the rock-shaft G, and bears upon an arm or lever, D, rigidly secured to the shipper-lever shaft ,0, to rock the said shipper-lever shaft and operate the belt-. 5 shifting devicewhen the dagger strikes the said notch e.

Eis the lay, S A H is one of the lay-swords,pivoted to apin, t, at the bottom of the loom frame, this pin being the center of Vibration of the lay and parts attached to the lay.

J and J- are two plates secured'to the front face of thelay by screws, as shown, one Within I the warpand the other outside. Each plate has at the top a lug, a and a, in which are bearings for a long feeler-shaft, a, as shown; The feeler-w'ires w are secured to the innerend ofthe fceler-shaft in front of the feeler-s'lots, which is in the'front upper corner of the lay within the warp,-by means of an adjustable sleeved, as shown. A I K is a lever, serving in the mechanism shown both as a feeler-operating lever and a dagger; but in the present invention its use '75.:

as a dagger may be disregarded. The feele'r lever K vibrates upon a pin, e, projecting from a lug, e, at the lower part of the plate J, which extends below the lay, as shown. I

Thesaid lever K is connected with the" outer so end of the feeler-shaft o for thepurpose of imparting motions thereto,which shall be communicated to the feeler-wires by means of a I connecting-rod, r, a wrist-pin, p, and a crankdisk, it. through the pin e,while the other bears against a small pin, 1, on the daggerK, tends to throw the point of the dagger up and the rear end down. The pin 6' is held in any required position in the lug e by a set-screw, e", as shown, go

to regulate the tension of the spring.

A slot, 0, in the crank-disk tand a pin, 0', in the lug a limit the extreme movements of the feeler-wires and dagger in their vertical vibrations. of the plate J and the front of the lay to accommodate the connecting-rod r.

Pis a'rod which I term the governing-rod I notch, e, to receive thethrust 'of the dagger,as 5o hereinafter described. A cam projection, d,

A spring, Z, one endof which passes Suitable slots arevcut in the back I PATENT OFFICE; A

or pusher, the same being a substantiallyperpendicular rod whose upper and free end passes through a hole in alug, Z, at the lower part of the plate J, in the vertical plane of the feeler-operating lever K, while its lower end is pivoted to a stand, L, beneath the loom. It is the same governing-rod which is described in my applications Nos. 170,015, (originally 58,946,) 58,947, and 58,949, and has the same adjustments, and since the devices for effecting those adjustments form the subject-matter of claims in application No. 170,015, they are for the purposes of the present application disclaimed noris the rod itself claimed herein, except in combination with other details of construction, the main feature of the present invention being the long feeler-shaft a.

It is not essential that the feeler-ope'rating lever be employed as a dagger. tage within the present invention will be gained if the feeler-operating lever be placed outside of the warp and the feeler-wires within, whether the feeler-wires are employed to operate a dagger directly, as herein described, or, as in many well-known stop-motions in practical use, to operate a locking mechanism which controls a dagger having normally a vertical vibration independent of the feelerwires. So, too, without departing from my present invention, although it is not essential thereto,the feeler-operating lever, when placed outside of the warp, may be attached directly to the feeler-shaft-a construction made clear in my said application No. 58,949. I

The operation of the mechanism actually shown is the same as that of the stop-motion shown in my application No. 170,015. The adjustment is such that when the lay reaches the proper place in its backward movement the upper end of the governing-rod strikes the rear end of the feeler-operating lever K, (which, as before stated, serves also as the An advan- V dagger,) and through the remainder of the backward movement of the lay overcomes the force of the spring Z or the weight of the feeleroperating lever and raises the feeler-wires.

As the lay returns, the governing-rod recedes through the hole in the lug Z, and the dagger or feeler-operating lever, under the force of the spring Z or its own weight, follows the governing-rod down and pulls down the feelerwires until, in the ordinary operation of the loom, the feeler-wires find the weft-thread, which, if properly thrown,thereafter supports them until the point of the dagger has passed under the knock-0E lever, when they draw ofl and fall into the slot 8, that they may not interfere with the beating up of the weft; but if the weft-thread has not been well thrown the feeler-wires fall at once with the slots, and the rear end of the dagger or feeler-operating lever follows .the governing-rod still farther .down in the receding movement of the latter, while the point rises to strike the knock-off lever and operate the belt-shifting mechanism.

I claim- 1. The combination, with the lay and bearings upon the face thereof, of the long feelershaft a, providedwith feeler-wires at one end within the warp, the pivoted governing-rod at the other end of said shaft without the warp, and actuating-connections intermediate the governing-rod and the warp, substantially as described.

2. The combination, with the lay and bearings therein, of the long feeler-shaft a, the

feeler-wires w, connecting-rod r,wrist-pin,

crank-disk t, dagger K, and pivoted governing-rod, substantially as described.

' LUGIUS. J. KNOWLES.

\Vitnesses:

J. M. RUssELL, H. H. MERRIAM. 

